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Giant cell tumor of bone is a benign but locally aggressive tumor accounting for approximately 20% of benign osseous neoplasms. Female gender predominance, common in second to third decade of life. Commonly seen around knee, with the distal femur being more frequently involved. Method Presenting a 25year old lady with history of progressive pain and swelling around right knee for 2 years and inability to walk for 6 months. Radiography and biopsy revealed giant cell tumor of the right proximal tibia involving the medial condyle. Two staged procedure planned. Stage 1 extended curettage, cementation of cavity with PMMA and a knee spanning fixator was done. In stage 2 at 12 weeks cement was removed and knee arthrodesis using allograft performed retaining the fixator in place. Results Patient was able to partially bear weight 6 weeks post 2nd stage of surgery and was able to bear full weight after 12 weeks. A solid arthrodesis was achieved at 5 months post 2nd stage, when the fixator was removed. There is no recurrence at end of one year Conclusions This is a novel method of low-cost treatment using bone cement and external fixator for stability. Cement gives immediate structural support and fixator allows ambulation and early weight-bearing. The importance of thorough curettage cannot be overemphasized in preventing recurrence. This can be a viable alternative treatment option for patients presenting with large giant cell tumors around the knee joint who cannot afford options like wide local excision and joint replacement using mega-prosthesis.

british journal of surgery

1125 Proximal Tibial Giant Cell Tumor in A 25-Year-Old Female Treated with Two Stage Extended Curettage, Cementing and Arthrodesis. Key Words: GCT, Two Stage, Curettage, Cementation, Arthrodesis